z-index of tooltip apparently now needs to be set at constructor.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@5528 71c3de6d-444a-0410-be80-ed276b4c234a

war/resources/css/style.css

@@ -616,7 +616,6 @@ DIV.yahooTree td {
   border: 1px solid black !important;
   background-color: #FFFFFF !important;
   padding: 2px !important;
-  z-index: 999;
   font-family: inherit !important;
   color: inherit !important;
 }

war/resources/scripts/hudson-behavior.js

@@ -123,7 +123,7 @@ function makeButton(e,onclick) {
 
 var hudsonRules = {
     "BODY" : function() {
-        tooltip = new YAHOO.widget.Tooltip("tt", {context:[]});
+        tooltip = new YAHOO.widget.Tooltip("tt", {context:[], zindex:999});
     },
 
     "TABLE.sortable" : function(e) {// sortable table